Vaporizing apparatus



H. F. SIMON VAPORIZING APPARATUS Dec. l 1923.

Filed Sept. 16 1921 A Nys.

Herman F Simon by/mdwm- Patented Dec. 11, 1923.

UNITED STATES PATENT oEFicE.

HERMAN FREDERICK SIMON, OF FITCHBURG, MASSACHUSETTS, ASSIGNOR TO PARKS- CRAMER COMPANY, F BOSTON, MASSACHUSETTS, A CORPORATION OF MASSA- CHUSETTS.

VAPORIZING APPARATUS.

Application filed September 16, 1921.

State of Massachusetts, have invented an Improvement in Vaporizing Apparatus, of which the following description, in connec,V tion with the accompanying drawing, is a specification, like characters on the drawing representing like parts.

This invention relates to improvements in vaporizing apparatus and particularly to that type of vaporizing' apparatus which is employed in the humidiiication of enclosures, and the general object thereof is to provide a more economically constructed and more easily regulated apparatus than has been heretofore produced.

More specifically the present invention relates to improvements in humidifying ap,- paratus of the Turbo head type which is disclosed in the following patents z-No. 869,945 A. W. Thompson, November 5, 1907; No. 968,074 Parks, August 23, 1910; and, No. 1,227,190 Parks, May 22, 1917.

In vaporizing apparatus of this `general type the amount of moisture delivered to the atmosphere of the enclosure is controlled in one of two ways. either by automatically shutting off all of the atomizers when the room has reached the predetermined degree of humidity and turning them on again automatically when the humidity decreases below said predetermined degree, or by regulation of the individual atomizer heads which deliver water vapor to the air of the room. In the latter case the regulation usually isY done manually, a valve being provided for controlling the air under pressure which is supplied to each of the humidifier heads. This requires a separate valve for each head. The present invention` contemplates the pro-vision of a unit having a plurality, preferably two, atomizer heads and provided with a single regulating valve which maybe operated to selectively cause one or more of the atomizer heads to operate, or which may be so actuated as to prevent the operation of any of the atomizer heads connected with it;

Serial No. 501,215.

A further object of the invention is to provide a vaporizer of this character with a plurality of atomizer heads which may be adjusted at different angular relations in order that the vapor produced by the head may bevprojected in different desired directions within the room.

A further object of the invention is to provide means for supplyingV each of the atomizer heads with the liquid to be vaporized without the possibility of interruption of the action of said atomizer head caused. by back pressure produced by the shuttingr od of another atomizer head. This is accomplished by providing` a separate liquid delivery pipe for each of the atomizer heads and causing said pipe to communicate with the liquid supply below the normal level at which the liquid is maintained inthe system which supplies the liquid to the atomizers.

@ther objects and features of the invention will more fully appear from the following description and the annexed drawings and will be pointed out in the claims.

In the drawings: v

Fig. 1 is a front elevation of a vaporizing` apparatus embodying my invention, certain of the conduits for supplying liquid to the atomizers 'being shown in vertical section;

2 is a plan view of the same; Fig. 3 is a vertical longitudinal sectional view through the valve casini!v through which air under pressure is supplied to the atomizer heads,y the valve being shown mainly in elevation; and,

Fig. 4 is a horizontal sectional view through the valve casingon line 1v- 4, Fig. 3, viewed from` the left.

The vaporizingr apparatus illustrated in the accompanying drawings comprises` a conduit 1 through which the lgaseous liiuid under pressure, such as. compressed air, ais supplied from a suitable source and a main liquid supply conduit 2 through which the water, or other liquid to be vaporized, is supp-lied, preferably from a usual tank. The conduits 1 and 2 maybe supported in. any desirable manner upon posts, or. from. the ceiling of the room, and the main liquid supply conduitdesirably is located below Y the conduit which supplies the gaseous iluid.

This construction, however, is old and is so well known to those skilled in the art that further descriptiony thereof is deemed unnecessary. Y

In the preferred embodiment of the inventiondisclosed herein a vaporizer unithaving two atomizer heads is mounted upon the conduit which supplies gaseous fluid under pressure. As illustrated a pipe 3 `is threaded through one section Il of a clamp and registers with or extends into an aperture ina soft metal bushing 5 which ein braces a tapped segment of the conduit 1. The complementary section 6 of the clamp embraces va diametrically opposite segment of the conduit 1 and the sections 4 and 6 are clamped together by bolts 7. A union of this character can be conveniently made at any point along the conduit either before or after its installation.

The upper end of the pipe 3 is provided with a liange 8 which forms a seat for the enlarged screw threaded portion 9 of a stem 10 of the vaporizer unit, a suitable gasket 11 being placed between the flange 8 andthe enlarged portion 9 of said stem. A nut 12 having a flange underlying the flange 8 and a screw threaded portion engaging the threads of the enlarged portion 9 of the sternV provides a coupling which can vbe readily and quickly assembled.

The stem 10 desirably is formed integral with the body 13 of the vaporizer unit, said body vbeing provided with integral and oppositely extending members 14 and 15 forming a casing for a plug valve 16. ally Vextending bosses 17 and 18 form arms of a T leading to the atomizer heads.

In the present construction short pipes 19 and 20y are screw threaded at their innerends into the bosses 17 and 18 and are connected at their outer ends tothe vaporizers by,

couplings 21 and 22 similar to that which connects the pipe 3 to the stem 10 of the vaporizer unit. The atomizer heads 23 and 24 desirably are of .the Turbo" type in which the gaseous'luid under pressure is introduced tangentially into a chamber withinV the head, the liquid being fed or j supplied through a small conduit extending Latereither or both of said heads by a single valve. In the preferred embodiment of the invention illustrated herein the valve 16 is in the 'form ot' a tapered plug valve which is seated in a correspondingly tapered aperture in the body portion 13 ot the vaporizcr unit. This valve is provided with three radially extending ports 25, 26 and 27, two o't said ports 25 and 26 being in axial alinement and the other port 2T normal to and communicating with both the ports and 26. By reason ot this construction the valve 16 may be so positioned, (as illustrated in Fig. 4t), as to establish communication from the conduit'. through the stem 10 with both atomizers, or by a ninety degree rotation from this position in one direction may be caused to communicate with one atomizer and cut off the other, or by a rotation of ninety degrees in the opposite direction may be caused to cut off the lirst and communicate with the second mentioned atomizer. By rotating the valve through one hundred eighty degrees the solid portion 2S of the valve will cover the aperture through the stem 10 thereby cutting oti" the supply of Huid under pressure to both the atomizers.

The plug valve 16 may be retained in its seat in any suitable manner. As illustrated herein the upper end portion of the valve 16 is provided with a shoulder which is engaged by a washer 29 which fits the valve aperture in the body portion ot the unit and is lirmly held in its seat by a bushing 30 which is engaged by a cap 31 having screw threaded engagement with the outer wall of the laterally extending member 11 of said unit. rl`he valve 16 is provided with a stem 32 having an angular end portion 33 to receive a handle or a wrench 34. The liquid. which in humidiiying systems is water, is supplied to the atomizer heads 23 and 24 respectively through preferably flexiblel pipes 35 and 36 ot copper or other pliable material which communicate with the liquid supply conduit 2.

ln this type of apparatus the liquid is drawn from a riser through the pipes leading to the vaporizer by the action of inspiration of the gaseous fluid under pressure rushing through the atomizer head around the nozzle with which the pipe 35 or 36 communicates. It has been found by experience that where the pipes leading to a plurality of atomizer heads communicate with the upper end of the riser the shutting ofi` of one head may cause a momentary back pressure of the air or other gaseous lluid under pressure in the pipe leading to the atomizer. thus closed, which will drive down the liquid in the riser so that the other atomizer head will be rendered ineffective. The present inveution includes means for preventing this contingency. As illustrated herein the pipes 35 and 36 are connectedA respectively to the liti tion, the stem 39 of which is screwed uponv Y the upper end of a riser pipe which is connected to the liquid supply conduit 2 by a suitable coupling comprising clamping members 4l and 42 and a bushing 43 similar to the' connection which unites the pipe 3 with the gaseous iiuid supply conduit l.

In the present construction the arm 38 of the T is provided with an axial bore 44 which communicates with a duct 45 which leads directly to the riser 40. The arm 37 of the T is provided with an axial bore 46 which extends to or beyond the center of the T and communicates with a passage 47 which preferably is located axially of the riser 40. A tube 48 which is screw threaded at its upper end into the body of the T extends downwardly, preferably concentrically with the riser 40, to a distance below the normal liquid level in the riser. By reason of this construction each of the atomizer heads is provided with an independent communication extending below the normal level of the liquid in the riser so that the back pressure produced by the trapping of air in either of the pipes 35 or 36, when the atomizer to which it leads is shut oft', will not result in disabling the other atomizer.

It will be readily understood that by reason of this construction two atomizer heads may be provided for each vaporizing unit, thus increasing the capacity of the apparatus without materially increasing the cost of installation. Furthermore, each of the atomizer heads may be regulated independently of the other, or both may be actuated or cut off by the operation of a single valve.

By reason of the rotatable connection between the atomizers and the head of the vaporizer unit, and the flexible connection between the atomizers and the water supplying means, vthe atomizers may be adjusted at any desirable angular inclination to the horizontal, and preferably may be so disposed as to project a water vapor in generally opposite directions so that a wider distribution throughout the air of the room will take place than in apparatus heretofore employed.

It will be understood that the present embodiment of the invention is illustrative and not restrictive and that other types of atomizers may be employed and that various changes in construction and arrangement of parts may be made within the spirit and scope of the following claims.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is:

l. A vaporizing apparatus comprising a delivery conduit, for a gaseous fluid under pressure, having a T, an atomizer head adjustably secured to each of the oppositely extending .branches of said T, a valve in said T having ports arranged to selectively supply said fluid under pressure to one or to both of said branches or to cut off the supply of fluid under pressure to either or both of said branches, water supplying means and flexible conduits connecting said water supplying means with said atomizer heads.

2. A vaporizing apparatus comprising a delivery conduit, for a gaseous uid under pressure, having a Vplurality of branches, an atomizer head connected to each branch` means operable to selectively supply fluid under pressure to one or to a plurality of` said branches, a liquid supplying pipe having a liquid level lower than the atomizer heads, a duct leading from said pipe to one of said atomizer heads, and an independent conduit leading from said pipe to the other atomizer head communicating with said water supplying pipe below said liquid level therein.

3. A vaporizing apparatus comprising a delivery conduit, for a gaseous fluid under pressure, having a T, an atomize-r head connected to each of the oppositely extending branches of said T, a valve in said T having ports arranged to selectively supply Huid under pressure to either of said atomizer heads, a main liquid supplying conduit having a` liquid level lower than the atomizer heads, a riser communicating with said main supplying conduit, a T on said riser, a pipe connecting one of the branches of said T with an atomizer head, a conduit leading to the other atomizer head having a member .enclosed within said riser and extending below said liquid level.

4. A vaporizing apparatus comprising a delivery conduit, for a gaseous fluid under pressure, having a T, an atomizer head connected to each of the oppositely extending branches of said T, a valve in said T having ports arranged to selectirvely supplly Huid under pressure to either of said atomizer heads, a main liquid supplying conduit having a liquid level lower than the atomizer heads, a riser communicating with said main supplying conduit, a T on said riser, pipes connecting the branches of said T respectively with said atomizer heads, a port in said T leading t0 one of said branches, and a tube within said riser extending below said liquid level communicating with the other branch of said T.

5. A vaporizing apparatus comprising a delivery conduit, for a gaseous fluid under pressure, having a T, an atomizer head connected to each of thel oppositely extending branches of said T, a valve in said T having ports arranged to selectively supply uid under pressure to either of said atomizer heads, a main liquid supplying conduit having a liquid level lower than the atomizer heade, a riser communicating with said main supplying YConduit, a; T on said riser, flexible pipes connecting the branches of' said T respectively With said atomizer heads, a portv in said T leading to one of said blanchesV and ay tube Within said riser detachably Secured to said T, communi, eating with the other branch and extending below said liquid level. l0

In testimony whereof, I have signed my name to this specification.

HERMAN FREDERICK SIMON. 

